I believe that the best answer for this question is false. The individual who was the first to describe microbes was Antonie van Leeukwenhoek. He is considered to be the Father of Microbiology and the first microbiologist. Hook was actually his contemporary. I hope this helps.
This is because of natural selection; since polar bears live in a rough environment, natural selection gives them more fur, more muscle, and can go longer without food
